thank you so much for your suggestion.
We already contacted Thailandtrain Ticket Team By Travex Co.,Ltd. and we bought 2 tickets:
Routing: Bangkok – Chiang Mai
Date: 25 December 2016
The agency confirm to leave the ticket at reception/concierge of your hotel on 21DEC’16.
Please, let us know if everything is ok or if the agency doesn’t respect the delivery of the tickets, otherwise we’ll see on 22nd December.
Thank you so much for your collaboration.